Reminds me of my departed mate in the 90's with a brand new Disco. (Don't know what model it was. I gave up caring about models of cars some time in the 70's). Anyhow he did a similar maneuver in front of a truck on City Link near the Bolte. Truck drivers response was "Yuppie D!ck Head". Nothings changed.The first one was packed with kids and changed lanes on me in a 70 zone with no indication causing me to honk the horn and call him names of an anatomical nature!